XIE Jian1，4，JIN Lingyi2 ，LI Wei1，3
1a. School of Civil Engineering，1b. Key Laboratory of the Ministry of Education on Binhai Civil Engineering Structure and Security， Tianjin University， Tianjin 300354， China；
2. China State Construction Hailong Technology Company Limited， Shenzhen 518110， China；
3. School of Civil Engineering， Lanzhou Jiaotong University， Lanzhou 730070， China；
4. Beijing Engineering Research Center of Existing Building Renovation （Tianjin Branch）， Tianjin 300354， China
Significance Magnesium phosphate cement (MPC) is an advanced cementitious material renowned for its ceramic-like properties, making it a promising candidate for structural repair and reinforcement applications. Its rapid hardening characteristics and early-age strength development allow for efficient construction in time-sensitive projects, while its exceptional dimensional stability ensures long-term structural integrity. Despite these advantages, practical challenges such as excessively short setting times and inherent brittleness have hindered its widespread adoption. To overcome these limitations, researchers have focused on modifying MPC through the strategic incorporation of mineral admixtures and high-performance fibers. These modifications aim to optimize the material’s fresh-state workability, enhance its mechanical performance such as flexural and compressive strength, and improve its fracture toughness, ultimately transforming MPC into a more versatile and durable construction material suitable for diverse engineering scenarios.
Progress The modification of MPC has been extensively studied through the integration of various mineral admixtures and fiber reinforcements. Mineral admixtures such as fly ash (FA)， metakaolin (MK), and industrial waste slag play pivotal roles in refining the material’s microstructure and enhancing its performance. For instance, FA acts as a micro-aggregate that fills the voids between MPC particles, thereby improving paste fluidity, reducing hydration heat, and mitigating the risk of thermal cracking. Its pozzolanic reactivity further contributes to long-term strength development. MK, a highly reactive aluminosilicate, accelerates the formation of stable hydration products, balancing early strength development with controllable setting times. Industrial waste slag, on the other hand, reduces production costs and promotes sustainable construction practices.
Conclusions and Prospects The incorporation of mineral admixtures and fibers has profoundly influenced MPC performance, though their effects differ in scope. Mineral admixtures primarily enhance fresh-state properties, such as extending setting time, while refining the microstructure to boost mechanical strength and durability. Fibers, conversely, contribute mainly to toughening mechanisms, elevating energy absorption capacity compared to plain MPC, even though they have limited influence on compressive strength.
Keywords：magnesium phosphate cement; mineral additive; fiber; modification
Get Citation: XIE Jian， JIN Lingyi， LI Wei. Research progress on modification of magnesium phosphate cement-based materials［J］. China Powder Science and Technology，2026，32（1）：1−11.
Received: 2024-11-25, Revised: 2025-10-20, Online: 2025-11-21.
Funding:The research was supported by the National Natural Science Foundation of China (Grant No. 52068043).
DOI：10.13732/j.issn.1008-5548.2026.01.011
CLC No:TU528；TB4 Type Code: A
Serial No:1008-5548（2026）01-0001-11
